I'm really not sure why people would use both in PCT to be honest. SERMS only provide a temporary effect anyways, and you crash as soon as you come off of them. More SERM does not equal better either. You want just enough to stimulate LH and noting more, then you need a sufficient booster to raise levels naturally coupled with the right AI to control rebound. Those are the right tools for recovery. A PCT I recommend would be set up like this:
I've never used Sarms but I hear great things about it! I usually run HCG 2 weeks before ending cycle and clomid as well as HCGenerate, unleashed and d spark
I prefer nolva to clomid ( just because it has worked for me with no problems so why chance it?) along with the HCGenerate and unleashed to help promote my natural production.